<template>
  <button @click="showInfor">点击按钮更换图片</button>
  <img :src="url" />
  <input type="text" @keypress="showInfor1" />
</template>

<script setup>
// function showInfor(){
// }
import { ref } from "vue";
// 显示图片
let url = ref(new URL("../assets/img1.png", import.meta.url).href);
const showInfor =() => {
   console.log("欢迎来到Vue3内置指令");
  url.value = new URL("../assets/img2.png", import.meta.url).href;
};
const showInfor1 =() => {
  alert("按下按钮");
};
</script>

<style>
</style>
